<html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Hello</title>
        <link rel="stylesheet" th:href="@{/css/index.css}" />
    </head>
    <body>
    欢迎您,<span th:text="${user.usrName}">usrName</span>
    </body>
</html>